How can you obtain iodoethane from ethanol when no other iodine containing reagent except NaI is available in the laboratery?

Explanation

To obtain iodoethane from ethanol using only sodium iodide (NaI) as the iodine-containing reagent, we can follow these steps:

### Step-by-Step Solution:

1. **Convert Ethanol to Bromoethane**:
- Ethanol (C2H5OH) can be converted to bromoethane (C2H5Br) by treating it with red phosphorus (P) and bromine (Br2).
- The reaction can be represented as:
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